1. gpdftext- gpdftext opens a simple text-based PDF file, typically intended for reading on an ebook reader and loads the text into a text editor window, autoformatting the text for long lines and paragraph breaks.

2. vim- Vim is an almost compatible version of the UNIX editor Vi. Many new
features have been added: multi level undo, syntax highlighting,
command line history, on-line help, filename completion, block operations,
folding, Unicode support, etc.